The Dexes / Satellite Decay / 33321
CelestialObjectDex · Satellite Decay
HUANJING 1B (HJ-1B)
33321 · 2026-04-03T14:11:05Z
Fixes
350
Observations
350
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| start_utc | 2026-04-03T14:11:05.298720+00:00 |
|---|---|
| end_utc | 2026-08-23T23:53:17.829600+00:00 |
| family | celestialdex |
| norad_id | 33,321 |
| object_name | HUANJING 1B (HJ-1B) |
| group | active |
| eccentricity_median | 0.004 |
| inclination_deg_median | 97.652 |
| n_snaps | 350 |
| span_days | 142.404 |
| mean_motion_first | 14.832 |
| mean_motion_last | 14.834 |
| delta_mean_motion | 0.003 |
| altitude_first_km | 619.320 |
| altitude_last_km | 618.513 |
| decay_rate_rev_day2 | 0.000 |
| altitude_decay_km_day | -0.006 |
| decay_note | mean_motion slope (rev/day^2) and altitude slope (km/day) from least-squares fit of measured GP elements; altitude from Kepler a=(GM/n^2)^(1/3) - R_earth |
| first_utc | 2026-04-03T14:11:05.298720+00:00 |
| last_utc | 2026-08-23T23:53:17.829600+00:00 |
| last_fix_utc | 2026-08-23T23:53:17.829600+00:00 |
| provisional | false |
| track | [{"utc":"2026-04-03T14:11:05.298720+00:00","mean_motion":14.83174927,"altitude_km":619.32,"eccentricity":0.00380142,"inclination_deg":97.6496},{"utc":"2026-04-03T20:39:40.929696+00:00","mean_motion":1 |
| total_sensor_hits | 0 |
Provenance
- celestrak
Storage: dossier · celestial_storehouse/satellite_decay/33321.json